Adjusting assembly of brake cylinder installation device

Abstract

An adjusting assembly of a brake cylinder installation device is provided, including: a fixing member; a guiding member, connected to the fixing member along an axis thereof, the guiding member having a plurality of sliding grooves therethrough and around the axis; a rotatable body, rotatably arranged between the fixing member and the guiding member, the rotatable body having a plurality of guiding grooves which correspond to the sliding grooves; a plurality of positioning pillars, respectively arranged between the sliding grooves and the guiding grooves, when the rotatable body rotates, the positioning pillars move linearly within the sliding grooves; wherein each said positioning pillar further includes a barrel portion and a rod portion which are retractably connected with each other.

What is claimed is: 
     
       1. An adjusting assembly of a brake cylinder installation device, including:
 a fixing member; 
 a guiding member, connected to the fixing member along an axis thereof, the guiding member having a plurality of sliding grooves therethrough and around the axis; 
 a rotatable body, rotatably arranged between the fixing member and the guiding member, the rotatable body having a plurality of guiding grooves which correspond to the sliding grooves; 
 a plurality of positioning pillars, respectively arranged between the sliding grooves and the guiding grooves, when the rotatable body rotates, the positioning pillars move linearly within the sliding grooves; wherein each said positioning pillar further includes a barrel portion and a rod portion which are retractably connected with each other. 
 
     
     
       2. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein a number of the sliding grooves is either odd or even. 
     
     
       3. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein a number of the sliding grooves is six. 
     
     
       4. The adjusting assembly of the brake cylinder installation device of  claim 3 , wherein each of the sliding grooves is angled with neighboring one of the sliding grooves at 60 degrees. 
     
     
       5. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein each said guiding groove is a curved. 
     
     
       6. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein the rotatable body has a through hole surrounded by the guiding grooves, and a side of the fixing member neighboring to the rotatable body has a fixing pillar which is inserted into the through hole and fixedly connected to the guiding member. 
     
     
       7. The adjusting assembly of the brake cylinder installation device of  claim 6 , wherein the guiding member further has a sleeve portion which is engaged with the fixing pillar. 
     
     
       8. The adjusting assembly of the brake cylinder installation device of  claim 7 , further including a bolt which is disposed through the sleeve portion and screwed with the fixing pillar. 
     
     
       9. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein a spring is arranged in the barrel portion and urges the rod portion, and the rod portion normally protrudes outside the sliding groove. 
     
     
       10. The adjusting assembly of the brake cylinder installation device of  claim 9 , wherein one of two ends of the barrel portion has a stopping edge abutable against a side of the guiding groove neighboring to the fixing member. 
     
     
       11. The adjusting assembly of the brake cylinder installation device of  claim 10 , wherein the other of the two ends of the barrel portion has an anti-off block which restricts the rod portion within the barrel portion. 
     
     
       12. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein an outer periphery of the rotatable body has a frictional pattern. 
     
     
       13. The adjusting assembly of the brake cylinder installation device of  claim 1 , wherein a side of the fixing member opposite to the rotatable body has an engaging portion. 
     
     
       14. The adjusting assembly of the brake cylinder installation device of  claim 13 , wherein the engaging portion is a polygonal post.